cleanup, docs

site/doc/pages/request_context_params.txt

@@ -5,6 +5,7 @@ Request Context Params
 SCRIPT_URL, BASE_URL, ROUTE_PATH, ROUTE_PAGE, ROUTE_PATH_RAW, ROUTE_VALID
 
 :see
+>uri
 request_script_url
 request_base_url
 request_query_path
@@ -26,3 +27,6 @@ UCE populates several convenience request parameters before invoking page, compo
 `ROUTE_PATH` is safe to compose under an application-controlled route root. Unsafe route input such as `..`, `.`, empty interior segments, backslashes, dots in filenames, or other non route-segment characters is rejected by the runtime and yields an empty `ROUTE_PATH` with `ROUTE_VALID=0`.
 
 These are useful for front-controller apps that use URLs like `/?dashboard` or `/?workspace/projects` while still accepting ordinary named query parameters.
+
+:example
+print(context.params["SCRIPT_URL"] != "" ? "has script url\n" : "request params available\n");